Glossary

Over 400 terms covering ISO 27001, BSI Grundschutz, technical security, compliance and law. Each term has its own page with a short definition and references to the places where it appears in the wiki.

How the glossary works

Auto-linking: The first occurrence of any term on every wiki page is subtly underlined and links directly to its definition.
Search: Use the wiki search at the top centre to find any term via full-text search.
Direct link: /wiki/en/glossar/<term> (e. g. /wiki/en/glossar/mfa).
Backlinks: Every glossary page lists the wiki pages where the term is referenced — grouped by Controls, Threats, Starter Kit and Laws & Standards.

Further glossaries

For an official or domain-specific definition, these external sources are worth a look:

ISO/IEC 27000:2018 — Vocabulary The only freely available ISO 27000 standard. Defines the core terms of the entire 27000 family. NIST Computer Security Resource Center Comprehensive US term database with over 10,000 entries, each cross-referenced to the underlying NIST publication. OWASP Cheat Sheet Series Over 100 alphabetically organised cheat sheets covering application security, secure development and web protection — including a Security Terminology Cheat Sheet. GDPR Art. 4 — Definitions The legally binding GDPR definitions (personal data, processing, processor, etc.).